Lesson 4 of 4Module 1 · 0% of course
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Number Sense & Algebra · Number sense

Orders of Magnitude & Estimation

Scientific notation, the handful of anchor numbers worth memorizing, and Fermi estimation: breaking an impossible question into factors you can guess within 2–3×, so the answer lands within an order of magnitude.

30 min · 5 steps · videoJump to quiz ↓
One Weird Math Trick Estimates ANYTHING (Fermi problems) Kyle Hill · 23 min
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Step 1 of 5 · Overview30 min read ·
Key idea
Prereqs: Exponents, roots & logs. Next: Variables & equations. Modeled on Fermi problems in MIT/Princeton physics courses and consulting/quant interview prep.
Next: 1. Scientific notation and orders of magnitude

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